Time can only move forward, never backwards. The faster an object moves closer to the speed of light. The more energy (infinite energy) is required to keep it moving. The higher the speed the more mass it gains in order to keep thrust and its force at the speed of light. The following object to move at the speed of light, its mass would become infinite, at the rate of expansion of the universe itself. There are some theories that the universe expanded faster than the speed of light, but this is only because empty space itself consists of zero mass. So it does not violate rules of paradox of light speed travel. Though if anyone were in a car moving at the speed of light. The will see a distortion of time space around them, a few seconds inside a vehicle moving at the speed of light may seem like years to anyone viewing the outside world. Days would go by so fast. While those viewing outside would see nothing but a blur, or maybe not even a blur at all. In most cases, people could easily take a time traveling trip to the future, but they can never go back to the past. Time is one dimensional. It only goes in one direction.
